some vibe tests

better than none

tests/Unit/BookingAmountsTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\AccountClass;
+use App\AccountType;
+use App\Booking;
+use App\IOType;
+use App\SubBooking;
+use Illuminate\Database\Eloquent\Collection;
+use PHPUnit\Framework\TestCase;
+
+class BookingAmountsTest extends TestCase
+{
+    public function test_split_booking_uses_account_signs_and_preserves_unsigned_total()
+    {
+        $income = $this->line(125.50, 1);
+        $expense = $this->line(25.25, -1);
+        $booking = new Booking;
+        $booking->setRelation('subBookings', new Collection([$income, $expense]));
+
+        $this->assertEquals(125.50, $income->signedAmount());
+        $this->assertEquals(-25.25, $expense->signedAmount());
+        $this->assertEquals(150.75, $booking->amount());
+        $this->assertEquals(100.25, $booking->signedAmount());
+        $this->assertFalse($booking->isSimple());
+        $this->assertNull($booking->accountType());
+        $this->assertNull($booking->project());
+        $this->assertNull($booking->personTarget());
+    }
+
+    protected function line($amount, $factor)
+    {
+        $io = (new IOType)->forceFill(['factor' => $factor]);
+        $class = (new AccountClass)->setRelation('ioType', $io);
+        $account = (new AccountType)->setRelation('accountClass', $class);
+
+        return (new SubBooking)->forceFill(['amount' => $amount])->setRelation('accountType', $account);
+    }
+}